LM3502SQ-25/NOPB

$2.64

Description：IC LED DRV RGLTR PWM 16WQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:064fc5428963 Category: LED Drivers IC Brand: Texas Instruments

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Product introduction

LM3502SQ-25/NOPB is listed in the LED Driver IC range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC LED DRV RGLTR PWM 16WQFN. Review the specifications below when checking this part for your BOM.

LED Driver IC specifications for LM3502SQ-25/NOPB

Description：IC LED DRV RGLTR PWM 16WQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Type：DC DC Regulator
Topology：Step-Up (Boost)
Internal Switch(s)：Yes
Number of Outputs：2
Voltage - Supply (Min)：2.5V
Voltage - Supply (Max)：5.5V
Voltage - Output：25V
Current - Output / Channel：600mA (Switch)
Frequency：1MHz
Dimming：PWM
Applications：Backlight
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：16-WFQFN Exposed Pad
Supplier Device Package：16-WQFN (4x4)
Grade：-
Qualification：-

LED Driver IC datasheet and documents for LM3502SQ-25/NOPB

LM3502SQ-25/NOPB

LED Driver IC Overview

The LM3502SQ-25/NOPB is a step-up DC-DC converter designed for white LED applications, manufactured by Texas Instruments. It features a fixed output voltage of 25V and supports a maximum switch current of 600mA. The device operates at a switching frequency of 1MHz and utilizes PWM dimming for brightness control. It is housed in a 16-WQFN package with an operating temperature range from -40°C to 85°C.

LED Driver IC Feature Summary

Integrated step-up DC-DC regulator optimized for driving white LEDs
Supports PWM dimming for precise brightness adjustment
Fixed 25V output voltage configuration
High switching frequency of 1MHz for compact external component size

LED Driver IC Applications

White LED backlighting systems
Portable electronic device illumination
General LED lighting driver circuits

LED Driver IC Procurement Notes

Verify the specific suffix '25' indicates the fixed 25V output variant. Confirm the 'NOPB' designation aligns with lead-free and RoHS compliance requirements if applicable, noting that some sources indicate lead content. Ensure the 16-WQFN package matches the PCB footprint design specifications.

LED Driver IC Selection Notes

Select this component when a fixed 25V boost output is required for white LED strings. The 1MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Consider the 600mA switch current limit against the total LED forward current requirements of the target application.

LED Driver IC Part Context

This part belongs to the LM3502 family of LED drivers from Texas Instruments. It is functionally similar to the LM3502SQ-35/NOPB but differs in its fixed output voltage setting (25V vs 35V). Both share the same WQFN package and core architecture for white LED applications.

LED Driver IC Replacement Considerations

LM3502SQ-35/NOPB offers a similar architecture with a different fixed output voltage (35V). Direct substitution requires verifying that the load voltage requirements match the new fixed output level.

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Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.